MYERS Illuminator Supernova Series, Installation Manual

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115895B System Installation Manual
MODBUS TCP & SNMP COMMUNICATION OPTION SECTION
SECTION 1
MODBUS Serial Communication Board
MODBUS TCP and SNMP communication from the single-phase Illuminator
Supernova Emergency Lighting Central Inverter is achieved via a standard Myers EPS
MODBUS serial communication option board
– which converts the RS-232
communication with the inverter controller into the MODBUS RTU protocol
– and a
Babel Buster BB2-6010 MODBUS RTU to MODBUS TCP Gateway, made by Control
Solutions Inc. (
https://www.csimn.com ). Figure 1 describes the data flow at a high level.
Figure 1
– Data Flow to Achieve MODBUS TCP and SNMP Integration
Everything inside the dashed box (including the Control Solutions Inc. Babel
Buster BB2-6010) is pre-wired, pre-programmed and pre-configured by Myers EPS, and
is internally mounted and powered inside the inverter cabinet (and will remain powered
when the utility A/C input goes down and the inverter switches to battery power). The
integrator may integrate directly to the Ethernet link on the BB2-6010. The below
information on the MODBUS Serial Communication Board is for your information only.
The MODBUS Serial Communication Option Board for the single-phase
Illuminator Supernova Emergency Lighting Central Inverter has two internal connections;
the RS232 communication bus to the inverter controller, and the input power that powers
the board. There are two external connections, a RS485 output connector that is the
MODBUS RTU link, and a USB connection that is a serial computer interface into the
RS232 communication bus to the inverter controller. For detailed operation on the
protocol and commands for the computer interface see manual 114063 RS-232
Communications. There are also two DIP switches that setup the MODBUS RTU
communication settings.
These should not be changed. Figure 2 shows an outline
diagram of the MODBUS Serial Communication Option Board and required DIP settings.
Figure 2
– Outline of MODBUS Serial Communication Board, and required DIP settings (do not change)